The episode was notable for its redesign of the Daleks into multi-coloured units, each with its own specific function. Writer Mark Gatiss acknowledged the controversial nature of this redesign in his in-vision commentary on the DVD box set. In conversation with principal Dalek voice artist Nicholas Briggs, and Dalek operatorBarnaby Edwards, he said that the new shape of the Daleks, especially in the dorsal region, was not particularly to his liking. Briggs agreed but, with Edwards, swiftly noted that in their experience of taking the new Daleks on live exhibition to the public, British kids invariably loved the new design. The decision was revisited in DWM 431 with critics voicing their opinions on the design. A comparison was made with the RTD-era Daleks but no conclusion as to which was the better-made.

Winston Churchill enters the Cabinet War Rooms and asks about the status of incoming enemyplanes; they are out of range, ordinarily at least. He then advises them to roll out the secret weapon. A figure is moved forward on the board — a miniature Dalek!

When a Luftwaffe squadron approaches London, Churchill takes the Doctor and Amy to the roof to showcase his latest weapon. The Doctor's introduced to ProfessorEdwin Bracewell, head of the new Ironside Project. A squadron of Stukas comes into view over Blitz-torn London, and are shot down by energy weapons with amazing precision. But that was never human technology. The Doctor watches, horrified, Bracewell produces a camouflaged, Union Flag-wearing, obedient Dalek. The Doctor's oldest enemies are back.

In Churchill's office, the Doctor argues with his old friend; Churchill will not listen to reason. Explaining that they are the Daleks and not "Ironsides", the Doctor is met with disbelief when Churchill produces photos, blueprints and test results Bracewell gave him as proof of inventing them. Continuing, the Doctor asks Churchill to eliminate the Daleks, but Churchill instead begins thinking what he can do with hundreds or thousands of them. Sourly, the Doctor points out that's why he's trying to show him. At wit's end, the Doctor asks Amy to tell Churchill about the 2009 Dalek invasion of Earth, but Amy has no memory of any planets in the sky or the Dalek invasion, disturbing him greatly.

Inside the Cabinet War Rooms, Amy approaches a Dalek with intent to learn its origins, but the Dalek simply asks if it can be of assistance. The Doctor approaches Churchill again, prodding him to reconsider his actions, but Churchill cannot afford to abandon his Ironsides at the risk of his city and people falling to the Nazis. The Doctor indicates that he is a beacon of hope for the country, except Churchill doesn't know if he can remain one for much longer. "If Hitler invaded Hell, I would give a favourable reference to the Devil. These machines are our salvation," he protests. An all-clear siren blares overhead, and the Cabinet lulls from its lengthy clamour.

The Doctor rages at a Dalek.

As Bracewell is offered tea by one of his Ironsides, the Doctor goes to see their "creator" to get some answers. He asks Bracewell how he came up with the idea for the Ironsides, leading Bracewell to show the Doctor other highly advanced inventions he has been planning. When the Daleks and Churchill enter the room, the Doctor strikes the Ironside Dalek with a large, heavy wrench, ordering it to attack him. He reminds them of how he defeated them, how he is their greatest enemy and how they are everything he despises. "I am the Doctor and you are the Daleks!" before kicking the Dalek across the room.

The Dalek recovers, and reverts to its true personality. "Correct." The Dalek transmits the "testimony" to the Dalek mothership, which is hidden behind the Moon. Two soldiers run in to stop the Daleks, and are promptly exterminated. The Professor yells for his creations to stop; one of the Daleks blasts his hand off, leaving only exposed wiring — Bracewell is their android, and they created him. They teleport away. Feeling like an idiot for falling for the Daleks' trap, the Doctor returns to the TARDIS, ordering Amy to stay behind.

He materialises inside the Dalek ship, where he uses a supposed TARDIS self-destruct device as leverage. The Daleks reveal that one Dalek ship survived the destruction of the Dalek race during the invasion of Earth; it located the last Progenitor device, a genetic archive containing pure Dalek DNA. Their explanation confuses the Doctor; why would they go to the trouble of building Bracewell? When the Daleks simple state, "it was... necessary", the Doctor laughs — the device doesn't see them as "true" Daleks as they were created in a different manner by Davros. If the Daleks became part of an army, Winston Churchill would lure the Doctor in, and the Doctor would confirm them as Daleks. The Progenitor needs the Doctor's testimony to confirm their identity. The Daleks order the Doctor to leave or else they will destroy London.

A new paradigm of Daleks.

The Doctor, however, knows that their ship doesn't have the power to do so. "Watch as the humans destroy themselves"; they activate a device which turns on all of London's lights, exposing the city as a target for incoming Germanbombers. The Progenitor completes its process, creating a new paradigm of five genetically pure Daleks — larger, more imposing, and presumably more powerful.

The new Daleks promptly label their creators as inferior. The old Daleks, without resisting, allow the new paradigm to exterminate them. The White Dalek identifies the Doctor, ordering that he be exterminated, but the Doctor tells it not to mess with him, again brandishing the Jammy Dodger. "Don't mess with me, sweetheart!"

In the Cabinet War Rooms, Amy and Churchill realise that they have been given a gift from the Daleks: they can use Professor Bracewell's alien technology to fight his own creator. They find him preparing to commit suicide, believing his whole life to be a lie. However, Amy talks him out of it, and Churchill demands to know whose side he's taking. Remembering Bracewell told them all his ideas, they convince him to construct anti-gravity shields around Spitfire planes, and equip them with Dalekenergy weapons. This will enable them to fly into space, and attack the Dalek ship. While waiting for the planes to take off, Bracewell creates a device that allows them to see what's going on in the Dalek ship; it shows the new Supreme Dalek introducing the New Paradigm of Daleks to the Doctor.

Back on the ship, the Doctor demands the Daleks turn off the laser, or he'll blow up the TARDIS and them with it. However, once the Daleks perform a scan that proves he's bluffing, he eats the Jammy Dodger, joking that he had been promised tea. The Dalek sensors go off, informing them that they have incoming spacecraft. The Spitfires arrive from Earth, and are ordered by the Doctor to target the dish as he flees into the TARDIS. The Dalek defence lasers take out two of the planes, Jubilee and Flintlock, leaving only Danny Boy. The Doctor disrupts the Dalek defences long enough for Danny Boy to destroy the dish the laser is coming from, shutting off London's lights. Just as the Doctor gives the order to destroy the ship, though, the Daleks appear on the TARDIS scanner. They order the Doctor to halt the attack, or they will destroy Earth with an oblivion continuumbomb they have built inside Bracewell.

Bracewell's bomb is exposed.

The Doctor reluctantly calls off the attack and returns to Earth, leaving the Daleks free to escape and build a new empire; however, they still activate the bomb as they flee. Upon arrival on Earth, the Doctor reveals that the bomb is charging itself inside Bracewell. Realising that the only way to stop it from exploding is to convince Bracewell that he is human, not an android and a bomb, he tries to remind the Professor of his memories and how much they hurt; however, the countdown continues.

As the oblivion continuum approaches detonation, Amy tries the opposite tactic. She asks him if he's ever fancied something he shouldn't; Bracewell proceeds to remember a girl called Dorabella, recounting how beautiful she was as the countdown retreats, cancelling the detonation. The Daleks escape through a time corridor, declaring that they will return. The Doctor is distraught over the Daleks' escape, but Amy reminds him that he has just saved the entire world.

Amy bids farewell to Churchill. Sadly, the war continues on with a cost for others. One of the young women at the War Rooms, Lilian, is sobbing; after several hours of fearing for his safety on the war front, she has just learned that her boyfriend Reg has been shot down over the Channel, and is being comforted by one of Churchill's associates, Blanche Breen. Amy looks on solemnly, but carries on, asking Churchill where the Doctor has gone. The Doctor enters and explains he removed all the alien technology Bracewell had in the base. Churchill begs the Doctor to let him have the technology as it would allow them to win the war in a day, but the Doctor points out it's that very reason why he took it. The friends hug, and prepare to part.

However, Amy outstretches her hand, and orders Churchill to return the TARDIS key to the Doctor; it was swiped during their hug. Churchill gives the key to Amy, calling her "almost" as sharp-witted as himself. The Doctor then demands his key from Amy; she reluctantly complies.

The Doctor and Amy go to Bracewell. He believes that, as alien technology, he has no place on Earth or during this time period. He sadly declares that he's ready to be deactivated. However, they have no intention of doing so. When their subtle hints fail, the Doctor and Amy openly tell Bracewell to go looking for Dorabella or the old post office. Finally catching on, Bracewell happily packs his belongings.

The Doctor and Amy return to the TARDIS. Amy questions the Doctor about having enemies, but tells him she doesn't have a problem continuing travelling with him all the same. The Doctor is puzzled and worried that Amy did not remember the Daleks from the Battle of Canary Wharf or the War in the Medusa Cascade, but puts this aside so that they may continue with their adventures. The TARDIS dematerialises, revealing a shining crack in the wall behind where the box once stood...

Not every person who worked on this adventure was credited. The absence of a credit for a position doesn't necessarily mean the job wasn't required. The information above is based solely on observations of the actual end credits of the episodes as broadcast, and does not relay information from IMDB or other sources.

Shortly before the end of the episode, Amy asks, "So, you have enemies, then?" This is a reference to a famed quote by Churchill: "So, you have enemies, then? Good. That means that you stood up for something, once in your life."

Churchill uses the acronym K.B.O., short for the phrase, "Keep Buggering On". This is similar to the famous British WWII motivational slogan, "Keep Calm and Carry On".

Initially, the new Daleks were going to replace those of the Davies-era Time War design, but due to polarising comments made about the new designs of the Daleks concerning fan reactions, it was later decided that the new models would serve as an "officer" class above these soldier variants. The Moffat and Davies-era Daleks were later intermingled in TV: Asylum of the Daleks to put the matter to rest.

This was the first Dalek story since TV: Dalek, back in 2005, not to feature David Tennant as the Tenth Doctor, as well as the first Dalek story since then to not be a multi-parter.

Like TV: The Unquiet Dead in Series 1, this episode is the third in the series, is a pseudo-historical, is penned by Mark Gatiss, and is both preceded and followed by two episodes by the head writer.

This is the second Dalek episode in the new series to use the infamous "...of the Daleks" title scheme, the first being TV: Evolution of the Daleks.

Mark Gatiss said in the Radio Times: "They're bigger than they've ever been; and in technicolour!" This would show that the new Daleks shall be different colours like the "classic" Daleks of the earlier eras.

The Daleks seen since series 1 were designed so that the eye stalk lined up with Billie Piper's eyes. The new Daleks are designed to match Karen Gillan's height.

For narrative and filming purposes, the Cabinet War Rooms in the episodes are far larger than the real ones and have an RAF "spotter" table that was not really present.

The Dalek model on the "spotter" table appears to be a Character Options Dalek toy painted grey, likely the "mutant reveal" Dalek figurine with the removable front given the visible separation lines on the front of the model.

This episode holds the record for the most Dalek props (with the exception of CGI, cutouts, toys and other illusions) used in a single story, with no less than eight Dalek models on-screen at the same time.

It is not clarified whether these Daleks were part of the half-human faction from The Parting of the Ways or members of the New Dalek Empire from Journey's End. They are implied to be from the latter but it is never stated. The Progenitor won't recognise the gold Daleks, the ones seen thus far in the series, because (according to the Doctor) it doesn't recognise their DNA as Dalek. This could mean that these Daleks are part of the fleet developed by the Dalek Emperor from human DNA or part of Davros' Medusa Cascade fleet developed from his own Kaled cells. The latter seems more likely, as Rose, empowered by the Time Vortex, wiped out the Emperor's fleet in an instant, making it extremely unlikely that a saucer would escape. The Dalek Handbook also states they are Daleks who survived the War in the Medusa Cascade.

This episode aired on the same day the K9 episode Jaws of Orthrus was first broadcast on Disney XD in Britain. It also aired on the same day that The Korven was first broadcast on Network Ten in Australia.

Although Terry Nation originally based the Daleks on the Nazis, this the first time the race has appeared in World War II - ironically, helping the British fight against the Nazis.

This is the first Dalek episode of the new series to not show any Daleks in flight.

When the Daleks say, "I am your soldier", this is a direct reference to TV: The Power of the Daleks, where they say, "I am your servant". Mark Gatiss asked voice artist Nicholas Briggs to purposely stall on the 'S' of "soldier" to trick the audience into thinking that they would say the infamous line once again.

When Amy fails to remember the Daleks, a incidental musical sting is heard identical to the one that played when the image of a crack appeared on the Doctor's TARDIS monitor screen, hinting that the cracks are connected to Amy's lack of remembrance. (TV: The Eleventh Hour, The Big Bang)

This is the only episode in which the episode's writer appears on screen.

Adolf Hitler was rumoured to make a brief appearance. He was mentioned, but not seen.

Fans speculated that the Daleks had been digitally re-coloured for the Radio times election special covers, and the Daleks featured in the episode would be uniformly coloured. This was proven false, and Daleks coloured red, blue and yellow were seen in the episode alongside others.

In the scene where the Doctor and Amy are discussing Bracewell's possible deactivation, editorJohn Richards fails to match the frontals of the Doctor with the reverses looking at Bracewell. In the frontals, Matt Smith clearly has his hands in his pockets or clasped together in front of him. On the reverses, his right hand is seen dangling rather lifelessly at his side.

At the end, when Churchill is talking to the Doctor and Amy, he bends down to light a cigar, and puts it in his mouth. When he gets up, it is no longer anywhere to be seen.

When the Doctor was talking to the Dalek Supreme on the "actual" shot he was further away from the Dalek but on the screen provided by Bracewell the plunger is nearly touching him. The Supreme Dalek was also seen moving towards the Doctor after the 'cleansing' of the old Daleks, but immediately after seen starting to move, it is back in its original position and immobile.

There were numerous points in the episode where the 'earlights' of the Daleks did not light when a Dalek was speaking.

Before the Doctor arrived, a Dalek states, "Commencing stage two!", but its earlights aren't on. The next Dalek that speaks uses another's voice instead of its own.

Before the new Daleks emerged, an old Dalek states that they had succeeded, but none of their earlights were on.

The Supreme Dalek had numerous incidents: when it ordered the extermination of the Doctor and stated that the Daleks would return, its earlights weren't on.

The Scientist Dalek's earlights didn't turn on when it was monitoring the energy pulse and the shields. Also notable is that its earlights were on, when it wasn't speaking, when the Supreme Dalek ordered the Doctor to 'explain'.

The cockpits of the spitfire pilots glow green when firing their lasers, but they fired red lasers.

When the TARDIS dematerialises and causes wind to blow against Churchill and Amy their clothes are affected but the cigar smoke in the air is unaffected and actually drifts towards the TARDIS.

When the Dalek ship renders all light switches useless, one person flicks a switch three times in an attempt to turn them off. When power is returned to the switches, the lights in the Cabinet War Rooms should technically have turned off, as the switch was hit an odd number of times.

In many scenes where the Ironside Daleks are present, the grill parts on their casing look ripped and in other scenes they are intact. The same thing happens on the Dalek spaceship, including with the gold Dalek.

Just as one of the Dalek ironsides is about to hand Bracewell a cup of tea, its dome is slanted to the left, but as its sucker arm retracts, the dome is straight again.

The Daleks immediately kill their predecessors/creators. This would later contradict their belief that it would be offensive to them to destroy such "divine hatred". (TV: Asylum of the Daleks)

The Doctor mentions sending the Daleks back into the Void (TV: Doomsday) and saving all of reality from them. He further states that Amy should have remembered them from when there were "planets in the sky", (TV: The Stolen Earth/Journey's End) and is concerned that she doesn't remember.

BBC Video - Doctor Who Series Five - Volume One was released on DVD and Blu-Ray on 7 June2010 (UK only), featuring The Eleventh Hour, The Beast Below, Victory of the Daleks and the featurette The Monster Files. [1] This episode is also featured on Disc 2 of The Complete Fifth Series Box Set.

Because of the ubiquity of this race, no attempt will be made here to list every appearance in every medium. Instead, we focus on televised appearances here, and invite you to explore a complete list of appearances elsewhere.